Invention Grant
- Patent Title: Method and apparatus to provide verification of data using a fingerprint
- Patent Title (中): 使用指纹提供数据验证的方法和装置
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Application No.: US10211146Application Date: 2002-08-02
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Publication No.: US08176508B2Publication Date: 2012-05-08
- Inventor: David Franklin , Louis Williamson
- Applicant: David Franklin , Louis Williamson
- Applicant Address: US CT Stamford
- Assignee: Time Warner Cable
- Current Assignee: Time Warner Cable
- Current Assignee Address: US CT Stamford
- Agency: Holland & Hart LLP
- Main IPC: H04H20/14
- IPC: H04H20/14 ; H04H60/29
Abstract:
The present invention verifies the transmission of a data stream, such as an advertisement, to a receiver in a data network, such as a television set in a cable television network. In particular, the present invention develops and stores a data stream fingerprint prior to transmission of the data stream. During transmission of the data stream, a verifier compiles the fingerprint from the transmitted data stream and compares it to the pre-developed and stored fingerprint. If the fingerprint signal characteristics are within predetermined parameters, the transmission is considered successful.
Public/Granted literature
- US20040025176A1 Method and apparatus to provide verification of data using a fingerprint Public/Granted day:2004-02-05
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